Investigation of the effects of wax additive on the properties of asphalt binder

Tan, Yiqiu; Zhang, Lei; Gong, Weizhi; Guo, Meng

doi:10.1016/j.conbuildmat.2012.06.024

Cited by 43 publications

(17 citation statements)

References 19 publications

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“…6,38 Reduction in paving temperature leads to reduced heat energy and CO 2 emissions. 12 Sasobit reduces the penetration value at 25°C 38 and increases the value of the softening point, 39 which leads to a higher viscosity of bitumen. 41 It increases the binder stiffness value at lower temperatures, which could lead to increased resistance of binder against permanent deformation (rutting); the rate of resistance depends on the amount of the modified bitumen added to the virgin bitumen.…”

Section: Effect Of Sasobit On Bitumenmentioning

confidence: 98%

“…35 It can be obtained by the dynamic shera rheometer (DSR) test. 39 In addition, G*/Sinδ and G*Sinδ are two important values in measuring rutting deterioration and fatigue cracking, respectively. According to Asphalt Institute (AI 2007) specifications, Table 1 illustrates the complex shear modulus of performancegraded bitumen for unaged, short-and long-term ageing conditions of DSR.…”

Section: Effect Of Sasobit On Bitumenmentioning

confidence: 99%

“…According to past experiences, numerous percentages of Sasobit have been used (all percentages are by mass of the binder): 1·5, 21 34,39 However, the recommended addition rate is from 0·8 to 3% by mass of the binder. [24][25][26] It should be noted that using over 4% of Sasobit has a harmful impact on bitumen.…”

Section: Ranges Of Dosagesmentioning

confidence: 99%

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Performance of warm-mix asphalt in the highway industry

Aziz¹,

Hainin²,

Yaacob

et al. 2014

Materials Research Innovations

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Warm-mix asphalt (WMA) technologies could address the problem of deterioration of roads, reduce escalated energy costs and increase environmental awareness. This technology allows significant reduction in temperature for construction and paving of roads compared to conventional hot-mix asphalt (HMA) paving. In HMA production, the quarry mixing and paving temperatures are equivalent to bitumen's viscosity of 170 and 280 cP, respectively, for a proper coating of aggregates and field paving. But in WMA, the viscosity of bitumen is reduced and increases the workability of the mixture. Sasobit and asphamin are the two major additives used with bitumen or in batching plant for the production of WMA. Besides, complex shear modulus (G*) is used to determine the rutting (G*/Sinδ) and fatigue factors (G*Sinδ) to control the deterioration of roads. A further study is needed to monitor the overall performance of WMA in the context of pavement temperature.

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Section: Effect Of Sasobit On Bitumenmentioning

confidence: 98%

Section: Effect Of Sasobit On Bitumenmentioning

confidence: 99%

See 1 more Smart Citation

Performance of warm-mix asphalt in the highway industry

Aziz¹,

Hainin²,

Yaacob

et al. 2014

Materials Research Innovations

View full text Add to dashboard Cite

show abstract

“…On the other hand high amount of wax in bitumen does not limit its usefulness as a material for the pavement construction and some new generations of wax additives can improve binder properties, e.g. stiffness and viscosities at service intermediate temperatures [10,11,14] and rutting resistance [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…n-Alkane (wax) modifier decreases binder viscosity thereby increases the effectiveness of covering a mineral mixture with a binder at lower temperature and improves compaction process [7,8]. n-Alkane additives are widely used as a binder modifier in Warm Mix Asphalt technology (WMA) [3,[9][10][11]. The WMA technology is ecologically friendly and improves the working environment during production and paving [12].…”

Section: Introductionmentioning

confidence: 99%

Rheological behaviour of n-alkane modified bitumen in aspect of Warm Mix Asphalt technology

Król

Kowalski

Radziszewski

et al. 2015

Construction and Building Materials

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Polyethylene based on molecular weight design for eco‐friendly asphalt

Luo

Zhu

et al. 2023

J of Applied Polymer Sci

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Polyethylene (PE) is widely used as a modifier for asphalt due to its low cost. However, PE increases the high‐temperature viscosity of asphalt, leading to higher construction temperatures and harmful emissions. In this study, PE‐modified asphalt with good road performance, energy saving and emission reduction was synthesized by adjusting the molecular weight (Mw) of PE. By studying the effect of PE with different Mw on the viscosity of asphalt, the Mw of PE that can reduce the high‐temperature viscosity of asphalt was concluded and the target product PE‐4 was synthesized. PE reduces the high‐temperature viscosity of asphalt when its Mw is less than the critical molecular weight (Mc) for molecular chain entanglement in the molten state. PE‐4 successfully reduced the high‐temperature viscosity of matrix asphalt. The pavement performance of PE‐4 modified asphalt was characterized. The results showed that PE‐4 reduced the penetration of asphalt, and improved its softening point, ductility, and rutting resistance. PE‐4 modified asphalt is an eco‐friendly asphalt with good road performance. The above data proved that PE with Mw less than Mc makes PE a promising asphalt modifier, which is beneficial to the green utilization of PE.

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Investigation of the effects of wax additive on the properties of asphalt binder

Cited by 43 publications

References 19 publications

Performance of warm-mix asphalt in the highway industry

Performance of warm-mix asphalt in the highway industry

Rheological behaviour of n-alkane modified bitumen in aspect of Warm Mix Asphalt technology

Polyethylene based on molecular weight design for eco‐friendly asphalt

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